diff options
| author | Mahesh Kumar <mahesh1.kumar@intel.com> | 2018-01-30 16:49:10 +0300 |
|---|---|---|
| committer | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2018-01-31 19:18:13 +0300 |
| commit | 9a9e3dfd6f8bff68434b9c5e1a3aa88f83a612ad (patch) | |
| tree | c30741801082acc49272c62e92e700669751eb08 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | 5b364bec5cbfd6c23505952a40150b053ec551d1 (diff) | |
| download | linux-9a9e3dfd6f8bff68434b9c5e1a3aa88f83a612ad.tar.xz | |
drm/i915/icl: Don't allocate fixed bypass path blocks for ICL
GEN9 onwards bypass path allocation of 4 blocks was needed, as per
hardware design. ICL doesn't require bypass path allocation of 4 DDB
blocks, handling the same in this patch.
v2 (from Paulo):
- No need for a comment that says what the code already says.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130134918.32283-2-paulo.r.zanoni@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 0b92ea1dbd40..11aac65d1543 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3778,7 +3778,8 @@ skl_ddb_get_pipe_allocation_limits(struct drm_device *dev, ddb_size = INTEL_INFO(dev_priv)->ddb_size; WARN_ON(ddb_size == 0); - ddb_size -= 4; /* 4 blocks for bypass path allocation */ + if (INTEL_GEN(dev_priv) < 11) + ddb_size -= 4; /* 4 blocks for bypass path allocation */ /* * If the state doesn't change the active CRTC's, then there's |